And her easy smile turned into a cool, serious look.

When he saw her face, the smile turned to an expression of concern.

He drew a deep breath, and his smile turned almost natural.

The smiles turned to sad looks of concern for her pain.

His smile turned into a grin as he nodded at me.

A slight smile turned the corner of her mouth, though she still didn't look at him.

Tell it to me' He said nothing, and his smile turned chilly.

Her smile turned to a grin to match his own.

Her smile turned wicked as she rolled him over on his back.

The smile turned to raised eyebrows when I saw the name on the last file.